2021
Immune dysregulation and autoreactivity correlate with disease severity in SARS-CoV-2-associated multisystem inflammatory syndrome in children
Ramaswamy A, Brodsky NN, Sumida TS, Comi M, Asashima H, Hoehn KB, Li N, Liu Y, Shah A, Ravindra NG, Bishai J, Khan A, Lau W, Sellers B, Bansal N, Guerrerio P, Unterman A, Habet V, Rice AJ, Catanzaro J, Chandnani H, Lopez M, Kaminski N, Dela Cruz CS, Tsang JS, Wang Z, Yan X, Kleinstein SH, van Dijk D, Pierce RW, Hafler DA, Lucas CL. Immune dysregulation and autoreactivity correlate with disease severity in SARS-CoV-2-associated multisystem inflammatory syndrome in children. Immunity 2021, 54: 1083-1095.e7. PMID: 33891889, PMCID: PMC8043654, DOI: 10.1016/j.immuni.2021.04.003.Peer-Reviewed Original ResearchConceptsMIS-C patientsDisease severityInflammatory syndromeTCR repertoireSARS-CoV-2-associated multisystem inflammatory syndromeAsymptomatic SARS-CoV-2 infectionSARS-CoV-2 infectionAdult COVID-19Post-infectious complicationsMultisystem inflammatory syndromeCytotoxicity genesHealthy pediatricImmune dysregulationMemory TActive infectionMyeloid dysfunctionPatientsSingle-cell RNA sequencingFlow cytometrySerum proteomicsRepertoire analysisElevated expressionSeverityAlarminsCOVID-19
2019
Phenotypic and Ig Repertoire Analyses Indicate a Common Origin of IgD−CD27− Double Negative B Cells in Healthy Individuals and Multiple Sclerosis Patients
Fraussen J, Marquez S, Takata K, Beckers L, Montes Diaz G, Zografou C, Van Wijmeersch B, Villar LM, O'Connor KC, Kleinstein SH, Somers V. Phenotypic and Ig Repertoire Analyses Indicate a Common Origin of IgD−CD27− Double Negative B Cells in Healthy Individuals and Multiple Sclerosis Patients. The Journal Of Immunology 2019, 203: 1650-1664. PMID: 31391234, PMCID: PMC6736705, DOI: 10.4049/jimmunol.1801236.Peer-Reviewed Original ResearchConceptsDN B cellsDouble-negative B cellsMultiple sclerosis patientsMS patientsNegative B cellsHealthy controlsClass-switched memoryB cellsAdaptive immune receptor repertoire sequencingSclerosis patientsRepertoire sequencingFrequency of CD95Naive B cellsUnique differentiation pathwayLow CD5Proinflammatory characteristicsImmune agingCD38 expressionHealthy individualsPatientsFlow cytometryLow mutation loadCD27Repertoire analysisMaturation stateReporting and connecting cell type names and gating definitions through ontologies
Overton JA, Vita R, Dunn P, Burel JG, Bukhari SAC, Cheung KH, Kleinstein SH, Diehl AD, Peters B. Reporting and connecting cell type names and gating definitions through ontologies. BMC Bioinformatics 2019, 20: 182. PMID: 31272390, PMCID: PMC6509839, DOI: 10.1186/s12859-019-2725-5.Peer-Reviewed Original Research
2015
Salmonella Infection Drives Promiscuous B Cell Activation Followed by Extrafollicular Affinity Maturation
Di Niro R, Lee SJ, Vander Heiden J, Elsner RA, Trivedi N, Bannock JM, Gupta NT, Kleinstein SH, Vigneault F, Gilbert TJ, Meffre E, McSorley SJ, Shlomchik MJ. Salmonella Infection Drives Promiscuous B Cell Activation Followed by Extrafollicular Affinity Maturation. Immunity 2015, 43: 120-131. PMID: 26187411, PMCID: PMC4523395, DOI: 10.1016/j.immuni.2015.06.013.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, MonoclonalB-LymphocytesClonal Selection, Antigen-MediatedGerminal CenterImmunoglobulin GLymphocyte ActivationMiceMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutReceptors, Antigen, B-CellSalmonella InfectionsSalmonella typhimuriumSomatic Hypermutation, ImmunoglobulinSpleenConceptsB cell receptorExtrafollicular sitesGerminal centersAffinity maturationInfection of miceB cell responsesB cell activationDetectable antibodiesSomatic hypermutationExtrafollicular responseAntigen microarraysSalmonella infectionAntigen targetsCell activationSalmonella typhimuriumCell responsesBCR specificityFlow cytometryCell receptorMonoclonal antibodiesUndetectable affinityClonal selectionInfectionAntibodiesLaser microdissection